1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
34kurt
3 years ago
5

A hot iron ball is dropped into 200.0 g of cool water. The water temperature increases by 2.0 C and the temperature of the ball

decreases by 18.6 C. What is the mass of the ball? waters specific heat is 4184 (J/kg•C)
Physics
1 answer:
Bess [88]3 years ago
7 0
0.2 KG, just search the question and it's on yahoo answers 
You might be interested in
An object is thrown upward from the top of a 144​-foot building with an initial velocity of 128 feet per second. The height h of
ankoles [38]

Answer:

After 9 seconds the object reaches ground.

Step-by-step explanation:

We equation of motion given as h = -16t²+128t+144,

We need to find in how many seconds will the object hit the ground,

That is we need to find time when h = 0

                        0 = -16t²+128t+144

                       16t²-128t-144= 0

                       t=\frac{-(-128)\pm \sqrt{(-128)^2-4\times 16\times (-144)}}{2\times 16}\\\\t=\frac{128\pm \sqrt{25600}}{32}\\\\t=\frac{128\pm 160}{32}\\\\t=9s\texttt{ or }t=-1s

Negative time is not possible, hence after 9 seconds the object reaches ground.

8 0
3 years ago
A motorist traveling with a constant speed of 15 m/s (about 34 mi/h) passes a school-crossing corner, where the speed limit is 0
nikklg [1K]

Answer:

(a) 10 s

(b) 30 m/s

(c) 150 m

Explanation:

The motorist's position at time t is:

x = 15t

The officer's position at time t is:

x = ½ (3) t² = 1.5 t²

(a) When they have the same position, the time is:

15t = 1.5 t²

t = 0 or 10 s

(b) The officer's speed is:

v = 3t

v = 30 m/s

(c) The position is:

x = 15t = 150 m

6 0
3 years ago
Which Sentence Describes A Physical Property
Alina [70]

The answer is (a).

Golf balls have a higher density than water hence sink to the bottom.

8 0
3 years ago
A flight distance from philadelphia to cancun is 1469 miles.the estimated flight time is 3.25 hours.What is the avarage speeede
Jlenok [28]

Answer:

1469 miles /3.25 hours = 452 miles per hours

Explanation:

divide distance by the time it takes to get there

4 0
3 years ago
How do forces work In nature? (short answer please I'm lazy) ​
melisa1 [442]

Answer:

Fundamental force, also called fundamental interaction, in physics, any of the four basic forces—gravitational, electromagnetic, strong, and weak—that govern how objects or particles interact and how certain particles decay. All the known forces of nature can be traced to these fundamental forces

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Determine the frequency of light whose wavelength is 4.257 x10-7 cm
    11·1 answer
  • Explain why the energy in the sun moves out toward the surface
    8·1 answer
  • 12. One object has half the mass of another object. The first object also has half the ---.
    7·1 answer
  • Even when shut down after a period of normal use, a large commercial nuclear reactor transfers thermal energy at the rate of 150
    12·1 answer
  • A small ball is attached to one end of a massless, rigid rod. The ball and the rod revolve in a horizontal circle with the other
    7·1 answer
  • A rod of length 35.50 cm has linear density (mass per length) given by λ = 50.0 + 23.0x where x is the distance from one end, an
    5·1 answer
  • How do we know the sun rotates?
    5·2 answers
  • Series circuit when you had one bulb and battery voltage was at 9 volts, what was current into battery?
    13·1 answer
  • How to delete question​
    14·2 answers
  • What is the answer?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!